摘要
设B和A是非奇异M-矩阵,给出B和A-1的Hadamard积的最小特征值下界τ(B°A-1)的一个新估计式,理论证明和算例表明,本文所得新估计式改进了现有的一些结果.
If B and A are n x n nonsingular M - matrices, a new lower bound for the minimum eigenvalue τ（B°A-1） for the Hadamard product of B and A-1 is derived. Theoretical result and an example demonstrate that the new bound is better than some existing ones.
出处
《数学理论与应用》
2012年第2期60-66,共7页
Mathematical Theory and Applications
基金
Supported by Scientific Research Fund of Yunnan Provincial Education Department(2010Y073)
Scientific Research Fund of Oxbridge College(JQ10003,JQ12004)
